Yahoo Inc (YHOO) — If Yahoo CEO Marissa Mayer is forced out as a result of the company’s possible sale of its core assets, her severance package will be $54.9 million, according to a Securities and Exchange Commission filing after the market closed Friday.

Mayer was paid $36 million in FY2015 as her regular annual compensation.

Yhoo is currently changing hands at $36.44, down 0.41 percent

Facebook (FB) — The social networking giant is the target of a proposed class action lawsuit filed by a shareholder on Friday in a bid to stop the company’s plan to issue new Class C stock. The suit contends that the move is unfair and designed to establish CEO Mark Zuckerberg as the company’s controlling shareholder.

The lawsuit comes two days after FB announced its plan to issue the shares.

Halliburton (HAL), Baker Hughes (BHI) —- The two oilfield services giants called off their planned $28 billion merger Sunday, citing regulatory pressures as the main reason. Regulators had said the deal would hurt competition and would leave only two dominant oil-field services companies; Schlumberger Ltd (SLB) being the other.

On Monday, Baker Hughes’s stock lost 2.7 percent, while Halliburton’s rose almost 3%.

Shares of Opower, Inc. (OPWR) are higher by nearly 31% to $10.31 on heavy trading volume Monday morning after the energy data company agreed to be acquired by tech giant Oracle (ORCL) in a deal valued at $532 million, or $10.30 per share.